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Rural electrification and capacity expansion with an integrated modeling approach

Elias Hartvigsson (Institutionen för elektroteknik, Elkraftteknik) ; M. Stadler ; G. Cardoso
Renewable Energy (0960-1481). Vol. 115 (2018), p. 509-520.
[Artikel, refereegranskad vetenskaplig]

In developing countries, mini-grids are seen as an important option to improve electrification rates in rural areas. In order to be successful, mini-grids face issues of operation and sizing of generation capacities. Current studies on the optimal sizing of mini-grids do not include capacity expansion feedbacks regarding the operator's or investor's long-term economic performance on growth in electricity usage, e.g. gap between demand and supply impacting the operator's income. Using a System Dynamics model, this paper compares the impact from two capacity expansion strategies on rural mini-grid operator's long-term economic performance. The two capacity expansion strategies are: a strategy with minimized costs and a strategy where only diesel power is allowed. Research shows that a cost-minimized capacity expansion strategy might not be the most beneficial solution for the operator's long term financial performance. Specifically, the high investment costs prohibit the implementation of the cost-minimized expansion strategy. In addition, the diesel-only expansion strategy suffers from high operational costs, which creates long-term challenges as the share of diesel increase. Therefore, the timeline of the investments and when to implement different strategies is important, creating a benefit for a System Dynamics approach.

Nyckelord: Rural electrification, DER-CAM, System dynamics, Mini-grids



Denna post skapades 2017-11-14.
CPL Pubid: 253136

 

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Institutioner (Chalmers)

Institutionen för elektroteknik, Elkraftteknik

Ämnesområden

Energisystem

Chalmers infrastruktur